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Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
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Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
Anti-Breakage Fortifying Hair Serum - Genesis | L'Oréal Partner Shop
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Description

Genesis is the first dual action anti-fall haircare range: FOR ALL WOMEN, IN ALL LIFESTYLES, WITH ALL DEGREE OF HAIR FALL.
Powered with a cocktail of highly efficient ingredients to instantly strengthen and thicken the hair fiber for an immediate fuller look with more fiber strength, more fiber retention* and -84% less hair-fall**.

 

*Clinical study, 99 people, 6 weeks use.
**hair-fall due to breakage. Instrumental test on Bain Nutri-fortifiant + Masque Reconstituant + Ampoule/Sérum Aminexil.

 

HOW DOES GENESIS  WORK?
A double action for your client: 
Instantly: PROTECTS AGAINST DAILY EXTERNAL AGGRESSOR AND ANTIOXIDES thanks to Ginger roots and Edelweiss native cells.
Long Term: STOP HAIR-FALL FORTIFIES HAIR ANCHORAGE & RETENTION AND REDUCE HAIR-FALL FROM THE ROOTS thanks to Aminexil.

 

Sérum Anti-Chute Fortifiant benefits:
- Silicone-free.
- Strengthens hair day after day. 
- 97% less hair fall due to breakage from brushing*. 

*System of Bain Hydra-Fortifiant + Fondant Renforcateur + Sérum Fortifiant vs Non-Conditioning Shampoo.

 

WHO IS IT FOR? 
Genesis targets every woman with hair fall need that would efficient, convenient and peasurable with :
- Instant result of hair care
- Efficacy of anti hair fall solutions

How To Use

Activate scalp with the Serum Anti-Chute Fortifiant. 

Use once daily in the morning or before going to bed during a 6-week period :

Step 1: Take 1 pipette until the mark.
Step 2: Apply 3 drops by section and repeat on the whole scalp with 4 doses.
Step 3: Massage gently, do not rinse.

Learn more on Access

Ask more information about this product
Ingredients

Genesis Sérum Anti-Chute Fortifiant is enriched with GINGER ROOT,  EDELWEISS NATIVE CELLS and AMINEXIL.

GINGER ROOTS: Known for its ability to protect against daily external aggressors.

EDELWEISS NATIVE CELLS: Capable to resist the most extreme conditions and is known in skincare for its antioxidants. It also has power & collagen-preserving properties.

AMINEXIL: Helps hair to anchor more solidly into the scalp & prevents collagen from hardening around hair follicles to reduce hair-fall from the roots.

Rating & Reviews

1,412 reviews
5 stars
( 937)
4 stars
( 275)
3 stars
( 81)
2 stars
( 41)
1 star
( 78)
4
4.4 / 5 stars

Coco47

5

1.746115273E12 01/05/2025

Une repousse visible

Je connaissais déjà ce sérum pour l'avoir utilisé avec un résultat probant ma coiffeuse m'avait signalé la repousse de cheveux lors d'un rendez-vous du coup je refais une cure en espérant que ça soit aussi bénéfique que la fois précédente

Originaly posted on  kerastase.fr

Aleshia

5

1.745699407E12 26/04/2025

Nice for fine hair

Only giving it a 4 because I haven’t used it long enough to see results. Love the consistency and the feel in the scalp

Originaly posted on  kerastase-usa.com

Kei2110

5

1.745688609E12 26/04/2025

Excelente producto, me encanta

[This review was collected as part of a promotion.] Mi cabello está más fuerte y brillante. Antes de comenzar a utilizarlo experimentaba mucha pérdida de cabello, pero desde que tengo el suero he notado los cambios. Excelente!

Originaly posted on  kerastase-usa.com

Eunika

5

1.745641804E12 26/04/2025

My favorite

I would buy a 1000 times more, love the smell! It works for my hair

Originaly posted on  kerastase-usa.com

Amalfabars

5

1.745625605E12 25/04/2025

Great product

I've been using this product for a week and I'm seeing results already

Originaly posted on  kerastase-usa.com

restingniceface

5

1.746416594E12 04/05/2025

Incredible scent!

This product works as intended! My hair breaks much less and I have experienced much less shedding. The scent in unbelievably intriguing. Everyone who is near me compliments it! It's my holy grail for these two reasons! Just get it!

Originaly posted on  kerastase-usa.com

Ssssszz

5

1.745505008E12 24/04/2025

Love it

Love it - have not used it long enough to see a difference in hair growth but it does not leave my hair feeling greasy.

Originaly posted on  kerastase-usa.com

Amber33

5

1.745461804E12 23/04/2025

Smells so good, feels so good!

[This review was collected as part of a promotion.] I’ve been using this serum for a few weeks now and I love it! It smells so good, and I love how refreshed it makes my scalp feel! It’s just what I need before I go to bed, and my husband loves the smell too!

Originaly posted on  kerastase-usa.com

tinyng

5

1.74641662E12 04/05/2025

Must have for hair loss

[This review was collected as part of a promotion.] My hair shedding less and less after using this. And I know it didn’t mention that but it does help with new hair grow.

Originaly posted on  kerastase-usa.com

Lori31

5

1.745464507E12 23/04/2025

Good Serum

[This review was collected as part of a promotion.] I been only using this product for almost a month and I see that my hair is breaking less and falling less. I like this product.

Originaly posted on  kerastase-usa.com

Marina Paola

5

1.746416634E12 04/05/2025

Amazing!!!!

I'm now on my second bottle, and I've found that my shedding is finally in the normal range, and my hair looks healthier than ever. I love it

Originaly posted on  kerastase-usa.com

GulyaM

5

1.745334908E12 22/04/2025

Hair growth

It helped my hair to grow really fast. I purchased couple times and still using it

Originaly posted on  kerastase-usa.com

Sakura

5

1.745255709E12 21/04/2025

Scalp treatment!

Smell good, scalp is fresh! How feel good after massage with this

Originaly posted on  kerastase-usa.com

Anonymous

5

1.74524581E12 21/04/2025

Fingers crossed

So far, so good. I bought two bottles of this serum to test and see if it works.

Originaly posted on  kerastase-usa.com

Jessi90

5

1.745214304E12 21/04/2025

Amazing 😍😍😍😍

The best serum in this world it’s worth to use it 😍😍😍😍😍😍

Originaly posted on  kerastase-usa.com

libbyb

4

1.746416659E12 04/05/2025

Smells Great

[This review was collected as part of a promotion.] Love the way this product smells. I've been using it for months now, and it makes my hair feel so thick and beautiful! It's great.

Originaly posted on  kerastase-usa.com

Knd2192

5

1.745335814E12 22/04/2025

Doing Okay So Far

I havent been using it long but my review is based on the fact that I can use it on dry hair and it does make your scalp/hair greasy or anything. My only thing is the smell is subtle but strong. I try not to use it on dry hair right before bed otherwise the smell can be a little strong when trying to sleep. I would recommend just making sure the product dries fully if it bothers you, after that the smell is no issue.

Originaly posted on  kerastase-usa.com

Floria

5

1.745151394E12 20/04/2025

Constate une vrai difference sur la chute des cheveux

Originaly posted on  kerastase.fr

Bubu123

5

1.745260213E12 21/04/2025

It works!

[This review was collected as part of a promotion.] This serum significantly decreases hair loss. Definitely will purchase again!

Originaly posted on  kerastase-usa.com

Shelbyh

5

1.745269209E12 21/04/2025

Love

So happy it’s back in stock, found this product last fall and it works!

Originaly posted on  kerastase-usa.com

Salma R

5

1.745019966E12 18/04/2025

Je suis à mon 3ème flacon soit 3 mois d’utilisation. Je perdais énormément mes cheveux par touffes, ça me déprimait de voir autant de cheveux sur le parquet et sur la brosse. Au bout de 2 semaines d’utilisation, ma perte de cheveux a diminué et j’ai beaucoup de bébés cheveux remarqués également par mon coiffeur. Je recommande +++ ça a sauvé mes cheveux

Originaly posted on  kerastase.fr

nikhi98

5

1.74499381E12 18/04/2025

amazing

[This review was collected as part of a promotion.] i really liked the product, it is soo good,less hair fall

Originaly posted on  kerastase-usa.com

AmandaMarieH

5

1.74498841E12 18/04/2025

Love this product!

I’m still on my first bottle, but so far I am loving this product!

Originaly posted on  kerastase-usa.com

Brenda6

5

1.744767004E12 15/04/2025

Love it

I love using this hair serum. Controls the frizziness

Originaly posted on  kerastase-usa.com

Janelle551

4

1.744810208E12 16/04/2025

Trust the process

[This review was collected as part of a promotion.] I’ve been using this serum for 1 month and I started to notice a difference in the quality of my hair. It appears to be thicker and healthier. I love that this serum is not oily and smells good.

Originaly posted on  kerastase-usa.com

fluennn

5

1.74469233E12 15/04/2025

Pretty good

I don’t think the scent is overwhelming like some say. I like it so far

Originaly posted on  kerastase-usa.com

Jess97

5

1.744610405E12 14/04/2025

Best Hair Serum

I have been using this serum since I got it and see such a difference in my hair. My hair seems shinier and stronger than before yet the serum doesn’t weigh my hair down like others I have tried

Originaly posted on  kerastase-usa.com

Cierra

1

1.744645453E12 14/04/2025

Strong perfume

I had really high hopes, it just didn’t work for me.. the perfume in this product is so strong that it bothered my asthma and gave me headaches before bed…

Originaly posted on  kerastase-usa.com

Reply from Consumer Care Center

Hello Cierra. Thank you for reaching out about Serum Fortifiant Hair Serum. We would like to speak with you directly about it. Please give us a call at 877-748-8357, 9:00 am - 5:30 pm ET for assistance and provide the case #40656154. It would be helpful if you could have the products available when you call. Looking forward to speaking with you.

Zesh04

4

1.744435804E12 12/04/2025

Loved

This has lasted so long! Love this product and will buy again!

Originaly posted on  kerastase-usa.com

juliet22

5

1.744590604E12 13/04/2025

Amazing scalp serum

[This review was collected as part of a promotion.] Prevented fallout due to stress, which I noticed a few weeks into using the product daily. kept my hair strong, less breakage.

Originaly posted on  kerastase-usa.com

La negra

5

1.744330508E12 10/04/2025

Love the texture of the product. Is great for hair

Just ordered my second bottle. This product is excellent. My hair shading has diminished

Originaly posted on  kerastase-usa.com

Oliver88

5

1.74432151E12 10/04/2025

The best hair serum to use.

[This review was collected as part of a promotion.] My hair has become shinier and softer and fluffier, I've already used up one bottle and I'll keep renewing my subscription.

Originaly posted on  kerastase-usa.com

Oks1212

5

1.74430531E12 10/04/2025

Amazing

Love this so much! I was waiting to get it and now i can't live without it, just ordered a second bottle.

Originaly posted on  kerastase-usa.com

Nae267

5

1.744460112E12 12/04/2025

Impressed!

[This review was collected as part of a promotion.] Really made my hair grow! My baby hairs are growing fast

Originaly posted on  kerastase-usa.com

CurlyWH

5

1.744261209E12 10/04/2025

Fortifiant Hair Serum

[This review was collected as part of a promotion.] Love this product! Seems to be helping resolve hair loss due to damage

Originaly posted on  kerastase-usa.com

Dswind

5

1.746416707E12 04/05/2025

Love it and see a difference

I got this product because I felt like my normally thick hair was getting thinner as I got older. I have been using this and see little baby hairs growing!

Originaly posted on  kerastase-usa.com

NicLat

4

1.744254903E12 09/04/2025

Works well!

[This review was collected as part of a promotion.] I have thinning hair that is falling out. I have an appointment with a derm to determine the cause, but in the meantime I've been using this product.

Originaly posted on  kerastase-usa.com

Mari82

5

1.744406109E12 11/04/2025

Best hair serum!

Used this hair serum for several weeks and I noticed barely any hair fall out it’s literally magic in a bottle!

Originaly posted on  kerastase-usa.com

Olive11

5

1.744200914E12 09/04/2025

Great

Great product smells amazing and hair looks much healthier

Originaly posted on  kerastase.ca

Alexander kre

5

1.744097408E12 08/04/2025

Loved!

Loved loved loved noticed less fall out and grew out my baby hairs

Originaly posted on  kerastase-usa.com

Hillarymdza

5

1.744240506E12 09/04/2025

Worth it

Este producto vale la pena , se que para algunas personas puede estar algo caro pero definitivamente sirve ! Me encanta huele como perfume y definitivamente lo volvería a comprar ! Ya llevo dos botellas y lo súper recomiendo

Originaly posted on  kerastase-usa.com

Paulinalee

5

1.744054213E12 07/04/2025

Very good serum

I really like this serum. This is my third purchase. My hair shedding decreased. I just dont like the overpowering frangrance, but this issue refers to all kerastase products. Some of then would make me sneeze a lot. But if it comes to what it promises, it delivers, and the bottle last about a month. I like that its watery.

Originaly posted on  kerastase-usa.com

Esmeee

4

1.744050612E12 07/04/2025

Amazing

I love how they first of all it doesn’t leave your hair oily and I have actually noticed a difference with my hair falling out but I just hate how it’s expensive and it runs out first due to having to use it 4 times a day

Originaly posted on  kerastase-usa.com

Ocean S

5

1.74414601E12 08/04/2025

Purchsed three times

I’ve purchased this item three times already and will continue to purchase. It helps my hair grow and I love that it doesn’t weigh my hair down.

Originaly posted on  kerastase-usa.com

Dais daze

5

1.743810306E12 04/04/2025

Amazing for hair growth

[This review was collected as part of a promotion.] I’ve only been trying it for some weeks but so far it’s amazing !

Originaly posted on  kerastase-usa.com

MaryMc1154

5

1.74376801E12 04/04/2025

Addicted to this serum

Love, Love, Love! I am 55 years young with long hair. I had been noticing significant hair fall every time I was washed my hair. I starts using this product daily, at first, then every other day. My hair falls 95% less and is growing in thicker than it’s been in years. My only complaint is that the scent, while pleasant, is strong. I found that if I put it on my scalp about an hour before bed time the scent is not as strong when we go to sleep.

Originaly posted on  kerastase-usa.com

Rhaiany

4

1.743901206E12 05/04/2025

Scalp serum

Excited to try! Just got it today. Will do an updated review after some time

Originaly posted on  kerastase-usa.com

Esteph26

5

1.74370501E12 03/04/2025

Less hair falling

[This review was collected as part of a promotion.] I been loving this serum so much. I always struggle with hair thinning and this serum has helped a lot. go try it out ❤️

Originaly posted on  kerastase-usa.com

CeltSis

5

1.743863411E12 05/04/2025

Serum Fortifiant Hair Serum

This stuff is fantastic. Easy to use, great results. Helps keep my thin hair looking healthy and full.

Originaly posted on  kerastase-usa.com

Anonymous

5

1.743813026E12 04/04/2025

Amazing …. I love it

[This review was collected as part of a promotion.] Amazing product…. My hairs stopped falling and I like the product very much

Originaly posted on  kerastase-usa.com

Jessabell

5

1.743815703E12 04/04/2025

Magic

This is so far one of the best products for hair fall i ever try!!!

Originaly posted on  kerastase-usa.com

curlyswimmer

5

1.743602407E12 02/04/2025

Results !

[This review was collected as part of a promotion.] This absolutely works. I noticed a different in hair fall after a week or so. the scent is lovely and it does not make my scalp oily at all. it is pricey and you go through it fairly quickly, but it works!

Originaly posted on  kerastase-usa.com

Cpaulkc

5

1.743704114E12 03/04/2025

This works

My hair stopped falling the same week I started using this. I ordered an extra one before running out because this was OOS for a long time.

Originaly posted on  kerastase-usa.com

Megster20

5

1.743698714E12 03/04/2025

Amazing!!

I have seen such an improvement in the strength of my hair while using this product. It’s a mini-spa day when I apply it!

Originaly posted on  kerastase-usa.com

Msinger

5

1.743619512E12 02/04/2025

The holy grail

This serum has worked wonders for my hair!! It has grown about two inches in the two months I have used it and friends and family have noticed and complimented my hair! It’s non greasy and smells wonderful too!

Originaly posted on  kerastase-usa.com

Bella4404

5

1.743379204E12 30/03/2025

So nice

This makes my hair feel so soft and clean absolutely love it

Originaly posted on  kerastase-usa.com

Wendy jiang

5

1.743347709E12 30/03/2025

It is very helpful

[This review was collected as part of a promotion.] It helps my hair to be less oil. It is very helpful.

Originaly posted on  kerastase-usa.com

Sakura89

5

1.743509712E12 01/04/2025

My new favorite hair serum

I’ve ordered this serum three times now, and I’m really enjoying it. The scent is lovely, and I’ve noticed some improvements in my scalp after using it for three months.

Originaly posted on  kerastase-usa.com

Angie Palencia

5

1.743509712E12 01/04/2025

Just amazing

This product has helped me a lot, my hair was falling down and I had to look for a product to make my hair grow again, and now I have baby hairs everywhere and definitely with the shampoo using the Genesis system I can see the results faster than any other product.

Originaly posted on  kerastase-usa.com

Karen 71

4

1.743509712E12 01/04/2025

Hair serum

[This review was collected as part of a promotion.] The product works well but do need to use it for several weeks and keep using it. Pricey but worth it

Originaly posted on  kerastase-usa.com

Sarahh132222

5

1.746416922E12 04/05/2025

holy grail

I love the smell, bery clean and pleasant, 've seen much less breakage, my hair is shinier, thicker, I believe that there is new growth.

Originaly posted on  kerastase-usa.com

Ella L

5

1.743050703E12 27/03/2025

Best product ever

[This review was collected as part of a promotion.] I simply love this product and cannot live without it anymore!

Originaly posted on  kerastase-usa.com

AuroraM

5

1.743170408E12 28/03/2025

Amazing

This saved my hair after pregnancy. I was struggling with postpartum hair loss and used the set with the shampoo to try it out and had 0 hopes that it would work!! But it did an amazing job

Originaly posted on  kerastase-usa.com

Sammyq

5

1.743076808E12 27/03/2025

Amazing!

Noticed a difference already!!! Will keep buying !

Originaly posted on  kerastase-usa.com

Talidu

5

1.742760008E12 23/03/2025

Very refreshing

This was a gift for my mother, she love it! Every day using the product!

Originaly posted on  kerastase-usa.com

Sayli b

5

1.742697906E12 22/03/2025

Best

Best hair growth serum in the world. It reduced my hairfall in 3 weeks of consistent use. I use it only twice a week

Originaly posted on  kerastase-usa.com

Maria8678

5

1.742505309E12 20/03/2025

Excellent

I use it on daily basis. Makes my hair soft. Also it has reduced my hair breakage

Originaly posted on  kerastase-usa.com

Anonymous

5

1.742594654E12 21/03/2025

Très bon produit

Très bon produit, mes cheveux ont cessé de tomber, ils sont rendu très hydratant et souple , c’est un miracle je suis rendu accro merci

Originaly posted on  kerastase.ca

Eunika

5

1.742394608E12 19/03/2025

my favorite

I have bought this , but it is always out of stock, they have an issue on creating this product, I love the smell and I wish the out of stock would end!

Originaly posted on  kerastase-usa.com

User45

5

1.742394608E12 19/03/2025

Best hair growth serum

Best serum! Works well on fine hair type. Worth for the price.

Originaly posted on  kerastase-usa.com

Monisapphire

5

1.742393729E12 19/03/2025

Love it

Best product helps stop fallout feels refreshing on the scalp

Originaly posted on  kerastase-usa.com

Clara Tran

5

1.74222631E12 17/03/2025

I love it so much

[This review was collected as part of a promotion.] “I’ve stopped using all other shampoos since I started using this one. My hair always smells great, and the serum helps my hair grow faster.

Originaly posted on  kerastase-usa.com

Batia G

5

1.742335207E12 18/03/2025

Effective

[This review was collected as part of a promotion.] Used it after every wash for couple of weeks and helped with hair loss

Originaly posted on  kerastase-usa.com

luners

5

1.742335207E12 18/03/2025

soo good!

I’ve been using this and notice that my hair has been much stronger. I’ve also noticed less fall out.

Originaly posted on  kerastase-usa.com

Caroline22

3

1.742325394E12 18/03/2025

A voir.. si il y a des résultats

Je test le produit depuis seulement 1 semaine.. Mais pour le moment je peux dire qu'il graisse mes cheveux (j'ai les cheveux mixtes), et cela n'aide vraiment pas. De plus.. j'imagine la vitesse à laquelle le flacon va se vider.. Un flacon ne servira pas pour la cure de 6 semaines.

Originaly posted on  kerastase.fr

Thehouseofariannis

5

1.74231361E12 18/03/2025

The best product

[This review was collected as part of a promotion.] The Kérastase Genesis Serum Fortifiant is a great investment for those experiencing hair fall due to breakage. With continued use, it visibly improves hair strength and scalp health. Ideal for anyone looking to fortify their hair and prevent excessive shedding.

Originaly posted on  kerastase-usa.com

AdrianaC27

5

1.742267706E12 17/03/2025

Hair is so soft and full!!

This serum is so delicious the smell alone is so good and it leaves your hair feeling full yet soft and healthy all that the same time!

Originaly posted on  kerastase-usa.com

Longasshair

2

1.742324671E12 18/03/2025

not worth the price or wait

If you can’t keep it stocked there’s no point. I love this product but the issue is that it constantly sells out, and they charge sooo much for such a small amount. I am currently looking for an alternative as there are many different ones available. I love a brand that recognizes a need and fulfills it, it just feels like this company takes advantage. I like consistency and this brand fails at that.

Originaly posted on  kerastase-usa.com

Reply from Consumer Care Center

Hello there, thank you for reaching out about Serum Fortifiant Hair Serum. Please know we truly value your honest feedback and all these comments will be shared with the appropriate team for consideration.

StephC628

5

1.742219112E12 17/03/2025

The holy grail for scalp serum

My hair has always been on the thinner side, but even more so post partum. This helps save my hair and doesn't leave behind any grease or residue.

Originaly posted on  kerastase-usa.com

S Renee

5

1.742049912E12 15/03/2025

Amazing hair serum

[This review was collected as part of a promotion.] I started using this a couple of years ago. It is amazing and it does work. I continue using it for maintenance now. You definitely need to try this if you have thinning hair

Originaly posted on  kerastase-usa.com

B from IA

5

1.742219112E12 17/03/2025

Seems to be working

I really like this product, I can see new growth and can see it's working.

Originaly posted on  kerastase-usa.com

Avery Singer

5

1.741742105E12 11/03/2025

Great product

[This review was collected as part of a promotion.] So so good! Love this product. Have bought it multiple times

Originaly posted on  kerastase-usa.com

Tabatha

5

1.741647608E12 10/03/2025

Hair Saver!

Before using this serum, I lost tons of hair every time I touched it. Brushing, washing, or styling always left me with handfuls of fall out. I noticed a difference in my hair after the first two weeks of using this product and now I'm on bottle number three and use it three times a week instead of everything. The last time I washed my hair, I lost a strand. ONE STRAND. It was amazing.

Originaly posted on  kerastase-usa.com

Angela Hayward

5

1.741708818E12 11/03/2025

Won’t live without this

Life changing .. Will never go without this product ! Smell is the most amazing ever

Originaly posted on  kerastase-usa.com

Alexis1235

5

1.741708818E12 11/03/2025

Very nice

[This review was collected as part of a promotion.] This product doesn’t make my hair feel greasy. My hair is softer after using it

Originaly posted on  kerastase-usa.com

JohannaCS

5

1.741708817E12 11/03/2025

Amazing serum

Light weight, non greasy and hair loss has improved significantly

Originaly posted on  kerastase-usa.com

Mia Girl

5

1.741708817E12 11/03/2025

My hair was so damaged

My hair was severely damaged due to over bleaching, and this product has really brought it back to normal soft, not breaking and repairing my hair

Originaly posted on  kerastase-usa.com

Anna Ss

2

1.741709916E12 11/03/2025

Overpowering smell, I’m not sure it’s doing much

[This review was collected as part of a promotion.] Easy to put on but the smell is too strong and I haven’t noticed much of a change within a month. Plus the product is done within a month so it’s a bit too pricey to keep using.

Originaly posted on  kerastase-usa.com

Reply from Consumer Care Center

Hello Anna, Thanks for giving our Serum Fortifiant Hair Serum a try. We are sorry that you did not get the result that you expected. Consumer feedback like yours is extremely helpful, as it allows us the opportunity to improve our products and services. All these comments will be shared with the appropriate teams.

Eli Cajiao

5

1.741619713E12 10/03/2025

Great product

My hair feels so soft. I recommend! You won't regret!

Originaly posted on  kerastase-usa.com

Caaaaa

5

1.741573805E12 09/03/2025

Great serum

The serum has really helped with hair breakage for someone who is in their early 50s due to hormones and coloring my hair for decades. It makes your hair very shiny and smooth as well. The smell is a bit potent and is quite floral however, if you like that, then that’s a plus

Originaly posted on  kerastase-usa.com

Anonymous

5

1.741313708E12 06/03/2025

Great hair serum

I love this product it has helped my hair tremendously

Originaly posted on  kerastase-usa.com

Mrs hair

5

1.741448713E12 08/03/2025

Not hreasy

[This review was collected as part of a promotion.] Love the smell of this product, doesn’t leave a greasy residue.

Originaly posted on  kerastase-usa.com

Adri scm

4

1.74127141E12 06/03/2025

Smells so good!

Worth it. I am trying it for the first month and it seems that it will work

Originaly posted on  kerastase-usa.com

Lexip1234

5

1.741247109E12 06/03/2025

My favorite ever

I’ve used this for years! Despite the price, I’ll never stop!

Originaly posted on  kerastase-usa.com

rashi1

4

1.741219215E12 05/03/2025

Will repurchase!

I have only been using this for 1 month, but I can see a difference in my hair! It is best to apply before bed.

Originaly posted on  kerastase-usa.com

Poppadop

5

1.741387511E12 07/03/2025

New Baby Hairs after one month!

[This review was collected as part of a promotion.] My daughter loves the hair serum. We purchased it to see if it would help with some hair loss she was experiencing and within a month of using it she's already seeing new little hairs around her hairline coming in. She's thrilled and has signed up for this to be a repeat order.

Originaly posted on  kerastase-usa.com

Mari9

5

1.741365486E12 07/03/2025

Love this product!

I definitely recommend this product and anything Kerastase! I did feel the tingling sensation a few times but this is my third bottle and I no longer get that feeling but most importantly my hair loss has significantly improved! Barely any at all

Originaly posted on  kerastase.ca

Michma

5

1.741095913E12 04/03/2025

Serum Review

I have used this prodcut consistently for a few weeks and my fallout is noticeably lower. I also love the scent of this product

Originaly posted on  kerastase-usa.com

Laci0876

5

1.741292111E12 06/03/2025

The proof is in the pudding…

This stuff works wonders. Very expensive in my opinion and will run out fast if using the recommended doses, BUT I have seen incredible results from using for about 2/3 weeks steady. I started pulling clumps out of my hair showering, or bruising and shedding all over my clothes daily, but this has almost completely stopped using this. Does not make my hair oily at all. Would recommend

Originaly posted on  kerastase-usa.com

LizATL

5

1.741035608E12 03/03/2025

My best friend

This is amazing and I run to buy it again when my bottle is nearing the end. It definitely reduces hair fall.

Originaly posted on  kerastase-usa.com

    Anti-Breakage Fortifying Hair Serum 90ml

    Kerastase - Genesis

    Product code : 3474636858002

     

     

    Daily anti hair-fall fortifying serum for weakened hair, prone to falling. The serum improves hair resistance to minimize hair-fall and maximize beautiful hair.

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